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(D) The general electronic configuration of group $12$ elements $(Zn, Cd, Hg, Cn)$ is $(n-1)d^{10}ns^2$.Copper $(Cu)$ belongs to group $11$ and has an

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$Cu, Zn$

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(D) The general electronic configuration of group $12$ elements $(Zn, Cd, Hg, Cn)$ is $(n-1)d^{10}ns^2$.Copper $(Cu)$ belongs to group $11$ and has an electronic configuration of $3d^{10}4s^1$.Zinc $(Zn)$ belongs to group $12$ and has an electronic configuration of $3d^{10}4s^2$.In option $D$,$Cu$ does not have the $(n-1)d^{10}ns^2$ configuration,while $Zn$ does.Therefore,the pair where both elements do not have this configuration is $Cu, Zn$.

In which one of the following pairs,both the elements do not have $(n-1)d^{10}ns^2$ configuration in their elementary state?

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